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Units editor <br />Units category <br />Variable <br />English default <br />Metric default <br />tab <br />Units <br />Output <br />Units <br />Output <br />decimal <br />decimal <br />places <br />places <br />Terrain & <br />Firebrand & Cover <br />• Cover Height Applied for Spot- <br />ft <br />I <br />m <br />1 <br />Spotting <br />Height <br />ting Distance from a Burning Pile <br />Units <br />• Cover Height Applied far Spot- <br />ting Distance from a Wind -Driv- <br />en Surface Fire <br />• Cover Height Applied for Spot- <br />ting Distance from Torching <br />Trees <br />• Firebrand Height from a Burning <br />Pile <br />• Firebrand Height from a Wind - <br />Driven Surface Fire <br />• Firebrand Height from Torching <br />Trees <br />Flame and Duration <br />. Steady State Flame Duration <br />no units <br />1 <br />no units <br />I <br />Ratios (can change <br />from Torching Trees <br />decimal places only) <br />. Tree Height/ Flame Height Ratio <br />ratio <br />ratio <br />for Torching Trees <br />Fire & Effects <br />Surface Rate of <br />• Surface Rate of Spread <br />ch/h <br />1 <br />m/min <br />1 <br />Units <br />Spread <br />Crown Rate of <br />• Critical Crown Rate of Spread <br />ch/h <br />1 <br />m/min <br />1 <br />Spread <br />• Crown Rate of Spread <br />Fire Heat Per Unit <br />• Canopy Heat per Unit Arca <br />Btu/ft' <br />0 <br />kJ/m' <br />0 <br />Area <br />• Crown Fire Heat per Unit Area <br />. Heat per Unit Area <br />Fireline Intensity <br />• Critical Surface Intensity <br />Btu/8/s <br />0 <br />kW/m <br />0 <br />. Crown Fireline Intensity <br />• Fireline Intensity <br />Flame Length & <br />• Critical Surface Flame Length <br />ft <br />I <br />m <br />1 <br />Scorch Height <br />• Crown Flame Length <br />• Flame Length <br />• Scorch Height <br />• Steady State Flame Height from <br />Torching Trees <br />• Flame Height from a Burning <br />-- <br />-- <br />Pile <br />Heat Source & <br />• Dead Fuel Reaction Intensity <br />Btu/ft'/ <br />0 <br />kW/m' <br />0 <br />Reaction Intensity <br />• Heat Source <br />min <br />• Live Fuel Reaction Intensity <br />. Reaction Intensity <br />Heat Sink <br />• Heat Sink <br />Btu/ft' <br />1 <br />kJ/nr' <br />1 <br />Spread Distance <br />• Backing Spread Distance <br />ch <br />1 <br />m <br />1 <br />• Crown Spread Distance <br />• Fire Length <br />• Forward Spread Distance <br />• Maximum Fire Width <br />• Surface Spread Distance <br />Fire Area <br />• Area <br />ac <br />1 <br />ha <br />I <br />• Contained Area <br />• Crown Fire Area <br />. Fire Area at Initial Attack <br />• Fire Size at Report <br />Fire Perimeter <br />• Crown Fire Perimeter <br />ch <br />1 <br />m <br />0 <br />• Perimeter <br />• Perimeter at Initial Attack <br />USDA Forest Service Gen. Tech. Rep. RMRS-GTR-249. 2010 105 <br />